/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.druid.sql.calcite.filtration;

import org.apache.druid.java.util.common.ISE;
import org.apache.druid.query.filter.DimFilter;

public class ValidateNoMarkerFiltersRemain extends BottomUpTransform
{
  private static final ValidateNoMarkerFiltersRemain INSTANCE = new ValidateNoMarkerFiltersRemain();

  private ValidateNoMarkerFiltersRemain()
  {
  }

  public static ValidateNoMarkerFiltersRemain instance()
  {
    return INSTANCE;
  }

  @Override
  protected DimFilter process(DimFilter filter)
  {
    if (Filtration.matchNothing().equals(filter) || Filtration.matchEverything().equals(filter)) {
      throw new ISE("Marker filters shouldn't exist in the final filter, but found: %s", filter);
    }

    return filter;
  }
}
